– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 am Thu 03 Sep Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 am Thu 03 Sep Local Time
Updates in:
Update imminent hr min s
Issued: 4 am Thu 03 Sep Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryModerate rain (total 14mm), heaviest on Sat morning. Very mild (max 15°C on Thu afternoon, min 9°C on Thu night). Wind will be generally light. | Days 4–6 Weather SummaryMostly dry. Warm (max 21°C on Tue afternoon, min 12°C on Sun morning). Wind will be generally light. | |||||||||||||||||
Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  |  |  | | | | | | |  | | | | | | |
rain shwrs | rain shwrs | clear | some clouds | light rain | light rain | light rain | light rain | light rain | some clouds | some clouds | clear | clear | clear | clear | some clouds | some clouds | clear | |
Cloud base (m) | 1650 | 900 | 2450 | 1800 | 1550 | 2250 | 600 | 600 | 650 | 2100 | 2800 | 2750 | 2700 | 9400 | 7100 | 7100 | ||
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 0.1 | 0.2 | — | — | 0.7 | 1 | 4 | 3 | 4 | — | — | — | — | — | — | — | — | — |
max °C | 12 | 15 | 12 | 14 | 14 | 13 | 11 | 12 | 11 | 17 | 19 | 15 | 17 | 19 | 15 | 19 | 21 | 18 |
min °C | 10 | 11 | 9 | 11 | 14 | 11 | 11 | 11 | 10 | 12 | 19 | 12 | 14 | 19 | 13 | 15 | 21 | 17 |
chill °C | 10 | 10 | 9 | 11 | 14 | 11 | 11 | 11 | 10 | 12 | 19 | 12 | 14 | 19 | 13 | 15 | 21 | 17 |
Freezing level m | 2150 | 2400 | 2500 | 2400 | 2450 | 2500 | 2350 | 2350 | 2400 | 2650 | 2900 | 2900 | 2850 | 3050 | 3500 | 3650 | 3650 | 3800 |
 | 6:26 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:31 | — | — | 6:33 | — | — |
 | — | 7:45 | — | — | 7:44 | — | — | 7:42 | — | — | 7:39 | — | — | 7:37 | — | — | 7:36 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Moderate rain (total 14mm), heaviest on Sat morning. Very mild (max 15°C on Thu afternoon, min 9°C on Thu night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mostly dry. Warm (max 21°C on Tue afternoon, min 12°C on Sun morning). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.
| Weather Station | Temp. | Weather | Wind | Gusts | Cloud / Visibility |
|---|---|---|---|---|---|
 | |||||
Bellingham Airport |  | ||||
Abbotsford Airport | |
* NOTE: not all weather observatories update at the same frequency which is the reason why some locations may show data from stations that are further away than known closer ones.